SSCP · Question #575
What is the role of IKE within the IPsec protocol?
The correct answer is A. peer authentication and key exchange. IKE (Internet Key Exchange) is a fundamental component of IPsec, responsible for authenticating peers and securely exchanging cryptographic keys used for data encryption and integrity.
Question
What is the role of IKE within the IPsec protocol?
Options
- Apeer authentication and key exchange
- Bdata encryption
- Cdata signature
- Denforcing quality of service
How the community answered
(45 responses)- A91% (41)
- B4% (2)
- C2% (1)
- D2% (1)
Why each option
IKE (Internet Key Exchange) is a fundamental component of IPsec, responsible for authenticating peers and securely exchanging cryptographic keys used for data encryption and integrity.
The Internet Key Exchange (IKE) protocol within IPsec establishes Security Associations (SAs) between peers. This process involves authenticating the communicating parties (peers) using methods like pre-shared keys or certificates, and securely exchanging the cryptographic keys required for subsequent encryption and integrity protection of the actual data traffic using protocols like ESP or AH.
Data encryption itself is performed by IPsec's Encapsulating Security Payload (ESP) protocol, not IKE.
Data signature for integrity is handled by IPsec's Authentication Header (AH) or ESP with authentication, while IKE is for key management.
Enforcing quality of service (QoS) is outside the scope of IKE's primary function in IPsec.
Concept tested: IPsec IKE function
Source: https://learn.microsoft.com/en-us/windows-server/remote/remote-access/vpn/ipsec-ike-extranet-support
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